Finding Missing Angles in Quadrilaterals

In a quadrilateral, if three angles are 75°, 110°, and 95°, what is the measure of the fourth angle?

• 100

• 85

• 120

• 80

Tags

CCSS.HSG.C.A.3

If the sum of the interior angles of a quadrilateral is 360°, and three angles are 85°, 95°, and 75°, what is the measure of the fourth angle?

• 120

• 180

• 90

• 105

In a quadrilateral, if one angle is 120° and the other three angles are each 90°, what is the measure of the missing angle?

• 30°

• 80°

• 60°

• 45°

Tags

CCSS.HSG.C.A.3

If the measure of one angle in a quadrilateral is 60° and the other three angles are each 100°, what is the measure of the missing angle?

• 60

• 100

• 90

• 120

Tags

CCSS.HSG.C.A.3

In a quadrilateral, if two angles are 80° and 100°, and the third angle is 110°, what is the measure of the fourth angle?

• 60°

• 70°

• 120°

• 90°

Tags

CCSS.HSG.C.A.3

If the sum of the interior angles of a quadrilateral is 360°, and three angles are 70°, 90°, and 100°, what is the measure of the fourth angle?

• 90

• 360

• 70

• 100

In a quadrilateral, if one angle is 150° and the other three angles are each 85°, what is the measure of the missing angle?

• 120

• 80

• 100

• 90

Tags

CCSS.HSG.C.A.3

If the measure of one angle in a quadrilateral is 45° and the other three angles are each 120°, what is the measure of the missing angle?

• 100

• 90

• 60

• 75

Tags

CCSS.HSG.C.A.3

In a quadrilateral, if two angles are 60° and 110°, and the third angle is 85°, what is the measure of the fourth angle?

• 120

• 75

• 105

• 90

Tags

CCSS.HSG.C.A.3

If the sum of the interior angles of a quadrilateral is 360°, and three angles are 80°, 100°, and 70°, what is the measure of the fourth angle?

• 110

• 150

• 120

• 90